The value of `(-5)xx(-1)xx(-3)xx(-2)xx(-4)+0xx6xx7xx8xx4xx5` is _______.

Options

A. 120
B. `-120`
C. 240
D. 0

Answer

To solve the expression `(-5) x (-1) x (-3) x (-2) x (-4) + 0 x 6 x 7 x 8 x 4 x 5`, we will break it down step by step.

### Step 1: Calculate the first part of the expression
We need to calculate `(-5) x (-1) x (-3) x (-2) x (-4)`.

1. **Multiply -5 and -1**:
\[ -5 \times -1 = 5 \]

**Hint**: Remember that multiplying two negative numbers gives a positive result.

2. **Now multiply the result (5) by -3**:
\[ 5 \times -3 = -15 \]

**Hint**: A positive number multiplied by a negative number results in a negative number.

3. **Next, multiply -15 by -2**:
\[ -15 \times -2 = 30 \]

**Hint**: Again, multiplying two negative numbers results in a positive number.

4. **Finally, multiply 30 by -4**:
\[ 30 \times -4 = -120 \]

**Hint**: A positive number multiplied by a negative number results in a negative number.

### Step 2: Calculate the second part of the expression
Now we calculate `0 x 6 x 7 x 8 x 4 x 5`.

1. **Since any number multiplied by 0 is 0**:
\[ 0 \times 6 \times 7 \times 8 \times 4 \times 5 = 0 \]

**Hint**: Remember that zero multiplied by any number is always zero.

### Step 3: Combine both parts
Now we combine the results from Step 1 and Step 2:
\[ -120 + 0 = -120 \]

### Final Answer
The value of the expression is **-120**.